PlayerList.java

/*
 * Copyright (c) 2010 SimpleServer authors (see CONTRIBUTORS)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package simpleserver;

import static simpleserver.lang.Translations.t;

import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;

public class PlayerList {
  private final Server server;
  private final ConcurrentMap<String, Player> players;

  public PlayerList(Server server) {
    this.server = server;
    players = new ConcurrentHashMap<String, Player>();
  }

  public synchronized Player[] getArray() {
    return players.values().toArray(new Player[players.size()]);
  }

  public int size() {
    return players.size();
  }

  public synchronized void waitUntilEmpty() {
    while (players.size() > 0) {
      try {
        wait();
      } catch (InterruptedException e) {
      }
    }
  }

  public void updatePlayerGroups() {
    for (Player p : players.values()) {
      p.updateGroup();
    }
  }

  public Player findPlayer(int entityId) {
    for (Player p : players.values()) {
      if (p.getEntityId() == entityId) {
        return p;
      }
    }
    return null;
  }

  public Player findPlayer(String prefix) {
    prefix = prefix.toLowerCase();
    for (String name : players.keySet()) {
      if (name.startsWith(prefix)) {
        return players.get(name);
      }
    }
    return null;
  }

  public Player findPlayerExact(String name) {
    return players.get(name.toLowerCase());
  }

  public synchronized void removePlayer(Player player) {
    players.remove(player.getName().toLowerCase());
    notifyAll();
  }

  public synchronized void addPlayer(Player player) {
    if (players.size() < server.config.properties.getInt("maxPlayers")) {
      players.put(player.getName().toLowerCase(), player);
    } else {
      Player playerToKick = null;
      for (Player friend : players.values()) {
        if (!((friend.getGroupId() >= player.getGroupId()) || (playerToKick != null)
            && (friend.getConnectedAt() < playerToKick.getConnectedAt())
            && (friend.getGroupId() > playerToKick.getGroupId()))) {
          playerToKick = friend;
        }
      }

      if (playerToKick == null) {
        player.kick(t("Sorry, server is full!"));
      } else {
        playerToKick.kick(t("Sorry, making space for more senior member."));
        players.remove(playerToKick.getName().toLowerCase());
        players.put(player.getName().toLowerCase(), player);
      }
    }
  }
}